I am having the exact same issue with mine. new 32 gb card from amazon.com on new 8gb fuze+ player. When connected to the computer, it sees the card fine. I filled up the 8gb, then I filled the sd card up about half full with music. Then I disconnected it from the computer and it says that I must format the sd card to fat32. I’m running win xp. I formatted it and the problem persists. Is the potential new firmware fix for this that the last poster referenced in the very near future? I don’t know what to do here… Should I return the card or fuze+ to Amazon, or both,…or should I wait?